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1. Sergey Bugaev (bugaevc@floss.social)'s status on Thursday, 19-Jan-2023 02:49:12 JST Sergey Bugaev

   in reply to

   A brief research (that's what we call googling now: research!) shows that:

   Meson seems to have given up on this idea; their shared_module() seems to just disable --no-undefined

   CMake has ENABLE_EXPORTS, which is said to do platform specific stuff (including -bundle_loader on Darwin, yay!), yet on Linux "loadable modules are simply linked without referencing the executable".

   • Adrian Cochrane repeated this.
   • Sergey Bugaev (bugaevc@floss.social)'s status on Thursday, 19-Jan-2023 02:49:13 JST Sergey Bugaev

     in reply to

     I do want to use --no-undefined and have the linker properly verify that all the symbols that plugins use are indeed exported by the executable, just like it's normally done when linking against shared libraries (and also to record symbol versions & stuff).

     Moving the required API into a shared library that both the plugins and the executable would all link against is *not* an option in my case.

     Adrian Cochrane repeated this.
   • Sergey Bugaev (bugaevc@floss.social)'s status on Thursday, 19-Jan-2023 02:49:14 JST Sergey Bugaev

     Does anybody here happen to know:

     is there any way, on GNU/Linux, to link plugins (.so libs that are expected to be loaded with dlopen() into the main executable) against the API exported by said executable?

     The executable is built with --export-dynamic. Linking the plugins *without* --no-undefined (i.e. with undefined symbols allowed) works, but that's suboptimal (to put it mildly) --

     Adrian Cochrane repeated this.
   • Sergey Bugaev (bugaevc@floss.social)'s status on Thursday, 19-Jan-2023 02:52:54 JST Sergey Bugaev

     in reply to

     I mean, in the end, it's all just ELFs, I can write any tools that I want and do anything myself (yay open, documented formats). But it would sure be nice to have an easy way to do this with upstream toolchains & build systems.

     Maybe there is a flag for this already that I'm missing?